Question # 1

The direction of momentum is

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opposite to motion

Along the velocity

Perpendicular to motion

None of these

To every action there is always an equal but __________ reaction:

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Same

Parallel

Opposite

Equal

If no external force acting on a body then such system is called.

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Ideal system

Controlled system

Isolated system

None

A boy jumps out of a moving bus. There is danger for him to fall

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Towards the moving bus

In the direction of motion

away from the bus

Opposite to the direction of motion

What is the effect of lubricicantion?

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Increase friction

No effect

Reduce friction

None

Newton's first law of motion is valid only in the absence of:

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Force

Not force

Friction

Momentum

A body jumps out of a moving bus. There is a danger for him to fall:

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Towards the moving bus

Away form the bus

In the direction of motion

opposite to the direction of motion

That force which produces an acceleration of one metre per second per second in a body of one kilogram mass is called

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1 joule

1 newton

1 watt

1 ampere

The weight of body is 147 N, Its mass will be ________ when g = 10 ms^-2

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1.47 kg

14.7 kg

47 kg

1.51 kg

The formula to determine the centripetal force is:

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Ms

mv²/r

Ns

Ns^-1

The product of mass and velocity is called ................. .

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Momentum

Force

Acceleration `

Nil

A string is stretched by two equal and opposite force 10 N each. The tension in the string is:

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Zero

5 N

10 N

20 N

Outer edge of the curved road is elevated to prevent

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Circular motion

Centripetal force

Skidding

Protection

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9th Class Physics Chapter 3 Dynamics English Medium KPK Boards Online Mcqs MCQs With Answers

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